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About setting of disposer (garbage crusher)

Updated: February 27, 2015

The disposer cannot be installed by itself.

A disposer (garbage pulverizer) is a device that pulverizes kitchen waste, such as vegetable scraps and fish bones, into small pieces and flushes them into the sewer pipes along with water.
If a disposer is used alone, the leftover food waste may rot and cause a foul odor, or may clog drain pipes or sewer mains in residential areas or condominiums.
Additionally, if garbage flows into the wastewater along with regular sewage, it can exceed the processing capacity of sewage treatment plants and cause deterioration of water quality in public water areas.
Due to the above problems, the city does not allow the installation of stand-alone disposers .
 

Installation of Disposer Wastewater Treatment System

The city does not allow the installation of a stand-alone disposer, but a ``disposer wastewater treatment system'' that comes with a wastewater treatment device can be installed.
However, this is limited to certified products that have been evaluated to comply with the "Performance Standards for Disposer Wastewater Treatment Systems (Draft)" created by the Japan Sewage Works Association.
When installing this system, please notify the Sewerage Division.

About report of disposer wastewater treatment system

When installing and using a disposer treatment system, the following documents must be submitted .

  • "Disposer wastewater treatment system" installation notification form
  • building layout
  • Drainage facility blueprint
  • A copy of the specifications showing the structure and performance of the equipment
  • Copy of maintenance contract
  • Plans for maintenance, etc.
  • User Inheritance Promise
  • A copy of the certificate, etc. related to the disposal system
  • Refer to the installation handling guidelines for other "disposer wastewater treatment systems, etc."

reference

Disposer wastewater treatment system notification related
Installation guidelines for “disposer wastewater treatment system, etc.”

Inquiries about this page

Inagi City Urban Environment Improvement Department Sewerage Division
2111 Higashi Naganuma, Inagi City, Tokyo
Phone: 042-378-2111 Fax: 042-378-9719

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Inagi city official mascot Nashinosuke Inagi
2111 Higashi Naganuma, Inagi City, Tokyo 206-8601
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